| Application: | Motor, Electric Cars, Motorcycle, Machinery, Marine, Toy, Agricultural Machinery, Car |
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| Hardness: | Soft Tooth Surface |
| Installation: | 90 Degree |
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A worm gearbox, also known as a worm gear reducer, is a mechanical power transmission device consisting of a worm gear and a worm wheel. It is designed to transmit rotational motion and torque between perpendicular shafts, typically at a right angle.
The key components of a worm gearbox are:
Worm Gear: The worm gear is a cylindrical gear with helical teeth, called the worm. It resembles a screw and is typically mounted on a driving shaft. The worm has one or more helical teeth that engage with the teeth of the worm wheel.
Worm Wheel: The worm wheel is a gear with teeth that mesh with the worm. It is usually a larger gear and is mounted on the driven shaft. The interaction between the worm and the worm wheel converts the rotational motion of the worm into the rotational motion of the worm wheel.
The worm gearbox operates on the worm and worm wheel meshing principle at an angle. This angle creates a sliding or rolling action between the teeth, resulting in high gear reduction ratios. The ratio of the number of teeth on the worm wheel to the number of threads on the worm determines the gear reduction ratio.
Key features and characteristics of worm gearboxes include:
High Gear Reduction Ratio: Worm gearboxes are known for their high gear reduction ratios, typically ranging from 5:1 to 300:1. This makes them suitable for applications requiring high torque multiplication and low-speed output.
Right Angle Transmission: Worm gearboxes commonly transmit motion at a right angle, allowing for compact and space-saving designs. The input and output shafts are positioned perpendicular to each other.
Self-Locking: One significant characteristic of a worm gearbox is its self-locking property. When the worm gearbox is not operating, the worm wheel's teeth can prevent the worm from rotating, effectively holding the load in place without additional braking mechanisms.
Efficient Power Transmission: Worm gearboxes provide efficient power transmission due to the sliding or rolling action of the worm and worm wheel. However, they can generate more heat than other gearboxes due to the sliding friction between the teeth.
Limited Backlash: Worm gearboxes typically have limited backlash, which refers to the amount of play or clearance between the teeth of the gears. This characteristic contributes to the accuracy and precision of motion transmission.
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